Nanotechnology

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Transcript of Nanotechnology

NanotechnologyBenefits Many of the actual problems in our world could be improved using Nanotechnology.

It can be applied in almost every category and aspect of human lives.

Potential Dangers of Nanotechnologyhttp://nextbigfuture.com/2007/11/economist-magazine-wants-more-spent-to.html#linksHealth RisksNanoparticles have been shown to be absorbed in the livers of research animals Can be taken up by cells Can get inside living cells Can be difficult to detect Certain nanoparticles can cause damage to lung tissue http://www.gizmag.com/are-nanoparticles-dangerous/13594/http://drrajivdesaimd.com/wp-content/uploads/2010/12/nanotoxicology.jpEnvironment Risks Strong as diamonds

Possibly litter environment

Present disposal problem in the future

Called: Nanopollution " The mysterious nature of materials manufactured at the nanoscale- just a few atoms thick, or 10,000 times thinner than a human hair- has led some to fear the technology's toxic power" -David Levitan http://www.nanowerk.com/spotlight/spotid=1781.phpTerrorismCapabilities of terrorists go hand in hand with military advances

Nanotech may create new, unimaginable forms of torture

Atomic weapons now more accessible

More destructive

Possibility of nanotech being used to develop chemical weapons PrivacySociety Potential abuses of nanotech Need strong system to regulate and monitor nanotech developmentsClaims that nanotech will not be evenly distributedPossible replacement of natural productsSmall and compact products

Easier to invade privacy

More mobile

Small enough to plant into our bodiesMeaghan McLoughlinAlannah BowllanAlex FlickManuel SeguraWhat is Nanotechnology?Deals with devies of less than 100 nanometersManipulate matter at the atomic and molecular scale

Applied in:Applied in:EnvironmentElectronicsBiomedicineMagneticsEnergyOpticsInformation TechnologyHistory1959Richard Feynman1980'sEric DrexlerAn American Physicist"Theres Plenty of Room at the Bottom"Provided inspiration for nanotechnology decades later

Most interested in "scanning electron microscopes" which could see things smaller than is possible.Millipede memory by IBM Nanoscale machines that arrange attoms "the way we want."""Swallowing the doctor" which meant to build a small surgical robot to swallow Challenges1. To construct a tiny mirror.Achieved by William McLellan November 1960.

2. To shrink letters down to 1/25,000 linear scale. (fit entire encyclopedia Britannica on the head of a pin)2. To shrink letters down to 1/25,000 linear scale. (fit entire Encyclopedia Britannica on the head of a pin) Accomplished by Tom Newman in 1985. (first paragrph in "A Tale of Two Cities""Swallowing the doctor" which meant to build a small surgical robot to swallowChallanges1. To costruct a tiny mirrorAchieved by William McLellan November 19602. To shrink letters down to 1/25,000 linear scale. (Encyclopedia Britannica on the head of a pin). Achieved by Tom Newman in 1985. (first paragrph in "A Tale of Two Cities."Popularized the concept of nanotechnology.

His book, "Engines of Creation: The Coming Era of Nanotechnology" proposed the idea of a nanoscale machine that could build a copy of itself and of other complex items.Published the term "Grey Goo" which illistruates the end of the world scenerio due to Nanotechnology.Out of control, self-replicating robots that consume all matter on Earth.Founded the Foresight Institute in 1986. It is a non profit organization for promoting transforming technologies. Future of NanotechnologyEric Drexler( introductor of the word Nanotechnology) predicted two apocapyptic scenarios:"The grey goo scenario"(carbon)" The green goo scenario"( organic)Positive sideMuch research is being doneApart from threats, great potential.Grow fasterChange flavoursEnrich foodsProtect from diseases, insects, etcavoid polutionFoodFlat flexible pannel displaysFasterLess powerCalifornia Molecular Electronics Corp.Molecule sized switches and other devicesEverspin TechnologiesMagnetoresistive Random Access Memory (MRAM)IBMNanophotonicsKodakOptoelectronics materials and devices

ElectronicsNanotechnology can address the shortage of fossil fuels by producing them from normal raw materials economically.Increasing the mileage of engines.FuelNanomolecules can be released to the atmosphere and the water to attract certain pollutive agents and disble them chemically.Cleaner air and waterNew materialsStronger, more resistant, cheaper, lighter, thick, stiff, heavy...Ease space travels.Can be used in many things such as sports( balls) Industry Early diagnosis of infectious disease.)The nanoparticles contain nitric oxide gas, which is known to kill bacteria.)MedicineNanorobots could repair specific diseased cells, in a similar way to antibodies in our natural way of repairing ourselves. MitVery effficientProven in rats.Trying to do so in humansCancer detection and trearmentNanotechnology could be the solution for many life or death problems and could ease our daily lives.Could be used in almost any field.

BenefitsAgricultureConstruction sectorMedicine sectorEnvironmental deteriorationSensors to detect deteriorationNew types of iron and steelNew types of glassReduction of costsConstructionNanotechnology could safe water, land and labor.We could become more independent from climate changes.Be more efficient.AgricultureMolecular nanotechnology will have many impacts on the field of medicine in general.MedicineMedicineFactsCheaper materialsBetter research and developmentsMore accessible to underdeveloped countries